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2026-07-29 22:07
메인 Technology Specialized Technology Generator Diagnosis

Specialized Technology

Generator Diagnosis

  • Pump and Hydropower Facility Diagnosis관련 사진 1
  • Pump and Hydropower Facility Diagnosis관련 사진 2
  • Pump and Hydropower Facility Diagnosis관련 사진 3
  • Pump and Hydropower Facility Diagnosis관련 사진 4
  • Performance of precision diagnosis for generators at domestic and overseas power plants to evaluate equipment integrity and predict remaining life
  • Provision of optimal solutions and execution of specialized maintenance services based on accumulated engineering technologies and experience to restore performance
  • Enhancement of equipment reliability through 3D reverse engineering and life extension works for performance and structural improvement

Diagnosis Service

Stator Diagnosis

  • Winding resistance measurement
  • AC current test
  • Dissipation factor test
  • Partial discharge test
  • Corona probe test
  • Corona camera inspection
  • Stator core integrity test
  • Stator wedge tightness test
  • Stator end winding vibration test
  • Insulation resistance measurement and polarization index test
  • C-Map test for water-cooled generator stator windings

Rotor Diagnosis

  • Insulation resistance measurement and polarization index test
  • Voltage drop and impedance test
  • Rotor inter-turn short circuit test
  • Winding resistance measurement

Generator On-Line Diagnosis

  • Measurement and diagnosis of stator partial discharge
  • Diagnosis of rotor inter-turn short circuits

Solution

01

Stator Rewinding & Repair

  • Replacement and maintenance of stator windings
  • Maintenance of stator through bolts
  • Maintenance of end winding support systems
  • Replacement of stator slot wedges and resin injection work
  • Chemical cleaning of water-cooled generator stator windings
02

Stator Core Restacking & Repair

  • Full and partial replacement of generator stator cores
  • Partial repair of generator stator cores
    • Application of etching and grinding methods
  • Design and installation of belly bands to reduce stator vibration and noise
03

Maintenance of Leakage Areas in Water-Cooled Generator Stator Windings, CERT

  • Replacement and maintenance of leaking water box TIG overlay of leaking water boxes
  • VPI, Vacuum Pressure Impregnation, of leaking water box
  • Maintenance of winding end components
    • Elbows, fittings, sleeves, windows, PTFE, etc.
04

Rotor Rewinding & Repair

  • Replacement and re-insulation of rotor coils
  • Replacement of rotor retaining rings
  • Maintenance of coils, support system modifications, and pole connectors
  • Replacement and maintenance of main leads, stud bolts, and slip rings
05

3D Reverse Engineering

  • Generator reverse engineering for performance and structural improvement using 3D scanners
  • Electromagnetic field analysis of generators for performance verification before generator capacity uprating

Major Clients

Domestic

  • Korea Hydro & Nuclear Power

  • Korea East-West Power

  • Korea Midland Power

  • Korea Western Power

  • Korea South-East Power

  • Korea Southern Power

  • Korea District Heating Corporation

  • POSCO

  • GS Power

  • SK Energy

  • Hanwha TotalEnergies

Overseas

  • Panasia Energy Holding INC.
    (Philippines)

  • Angat Hydro Corporation
    (Philippines)

  • International Power
    (Australia)

  • Saudi Electric Company
    (Saudi Arabia)

  • Krakatau
    (Indonesia)

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